Description

3-Amino-7-Nitronaphthalene-1,5-Disulphonic Acid is a high-purity, specialized organic intermediate of significant commercial importance. Its molecular structure, featuring both amino and nitro functional groups on a naphthalene disulphonic acid backbone, makes it a versatile precursor for synthesizing complex dyes and pigments. This compound is essential for manufacturers and R&D laboratories in the colorant and fine chemical industries seeking to produce vivid, stable azo dyes and other advanced organic materials.

Application

• Primary Intermediate for Azo Dyes and Pigments: Serves as a key coupling component in the synthesis of high-performance acid dyes, direct dyes, and reactive dyes for textiles, leather, and paper.
• Fine Chemical Synthesis: Used as a building block in the production of more complex organic molecules for research and specialty chemical applications.
• Liquid Crystal and Electronic Material Precursor: Potential use in the synthesis of organic semiconductors and dye-based materials for optoelectronic devices.
• Analytical Reagent: May be employed as a standard or reagent in analytical chemistry for method development and calibration.
• Research & Development: Utilized in academic and industrial R&D for exploring new synthetic pathways and functional materials.

Basic Information

Product Name	3-Amino-7-Nitronaphthalene-1,5-Disulphonic Acid
CAS No.	17527-17-2
Molecular Formula	C₁₀H₉N₃O₈S₂
Molecular Weight	363.32 g/mol
Synonyms	3-Amino-7-nitronaphthalene-1,5-disulfonic acid; 1,5-Naphthalenedisulfonic acid, 3-amino-7-nitro-; 7-Nitro-3-aminonaphthalene-1,5-disulfonic acid; 3-Amino-7-nitro-1,5-naphthalenedisulfonic acid; Acid Black 210 intermediate; Azoic diazo component 48 intermediate; Naphthalene-1,5-disulfonic acid, 3-amino-7-nitro-
EINECS	Contact for details

Quality Control

Our 3-Amino-7-Nitronaphthalene-1,5-Disulphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing results from HPLC, IR spectroscopy, and titration methods is provided with every shipment to guarantee traceability and compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). The product is light-sensitive and should be stored away from direct light exposure. Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Yellow to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.